I suppose it’s the convenience of having everything at once. I do not need to switch between five separate applications to track my schedule, contact someone, or get something done. The Integration of the calendar makes life easier because I always know when my colleagues are free and make an appointment immediately, no emails involved. Search also helps me a lot since no matter how many emails I get, I can easily find that particular attachment within seconds. Review collected by and hosted on G2.com.

The major issue that annoys me is that Outlook is quite heavy on my computer. When too many tabs or other resource-intensive applications are running, Outlook becomes slow; for example, it takes longer to search past emails and open attachments. Another problem that I would like to highlight is the necessity to wait for the email to index or reboot the application to see it immediately after searching. Finally, there is one more issue that needs to be mentioned, although it is minor. Sometimes I receive alerts on my phone; however, my email does not appear on my computer screen within one or two minutes, it may be some integration or sync issue. Review collected by and hosted on G2.com.

This is one Single application without which I can't function and it's an absolute necessity in ever organization. It keeps tracks of my calendar, my day schedule and need not to mention the primary mailbox stuff.

I really like it's UI, and also the accessibility features including switching to themes, classic and modern modes. The integration of it across any SMTP servers, my automation tools, teams and any office365 based apps.

The performance is pretty smooth with no lags. Also with AI Copilot integration the intelligence system is top noch and helps me drafts my email perfectly. Review collected by and hosted on G2.com.

Trust me, I’ve never faced any major issues with Outlook, and I’ve never really felt the need for additional features.

The only problem I run into is with search. Sometimes, even when an email is definitely there, Outlook fails to find it and instead shows irrelevant emails based on the search text. It also occasionally doesn’t return older emails, especially ones that are more than two years old.

On my MacBook, Outlook also doesn’t display the extra mailboxes that have been set up as additional mailboxes; it only shows the primary mailbox. Review collected by and hosted on G2.com.

What I appreciate most about Microsoft Outlook is how it combines email, calendar, and contacts in one platform. I can easily switch from reading messages to scheduling meetings, thanks to the Focused Inbox and strong search features that keep clutter at bay. The scheduling assistant makes finding meeting times with colleagues simple. It's reliable, syncs well across devices, and integrates with Teams and OneDrive. While it may not be flashy, it effectively helps me stay organized and productive. Review collected by and hosted on G2.com.

Outlook has potential but often feels slow and bloated, especially with many emails and add-ins. While its settings and rules are powerful, they can be confusing and require too many clicks for simple adjustments. Features like Focused Inbox and automated filters may misclassify important messages. Although the search function is usually reliable, it can be slow and inconsistent. Additionally, calendar invites and device syncing can lead to issues like time zone errors and duplicate reminders. Overall, the app can feel overwhelming for those seeking a simpler experience. Improvements in these areas would greatly enhance usability. Review collected by and hosted on G2.com.

I’ve been using Microsoft Outlook as my primary email and calendar tool, and it has become central to how I manage both daily tasks and long-term planning.

One of the most valuable features for me is the integration between email, calendar, and tasks. Being able to convert an email into a calendar event or a task in just a few clicks significantly reduces context switching. For example, when I receive a meeting request or an action item via email, I can immediately schedule it or flag it for follow-up without leaving the platform.

The calendar functionality is particularly strong. Features like scheduling assistant and shared calendars make coordinating meetings much more efficient. I’ve found that the visibility into others’ availability saves a considerable amount of back-and-forth communication.

Another aspect that adds value is the rule and filtering system. I’ve set up automated rules to categorize and prioritize incoming emails, which helps keep my inbox organized and focused on what actually requires my attention. Combined with the “Focused Inbox,” this reduces noise and allows me to process emails faster.

An unexpected benefit has been the seamless integration with other Microsoft tools, such as Teams and OneDrive. Joining meetings directly from calendar invites and accessing shared documents within emails streamlines collaboration and reduces friction in day-to-day work.

Overall, Outlook has improved my workflow by centralizing communication, scheduling, and task management in one place, making my workday more structured and efficient. Review collected by and hosted on G2.com.

The search tool is a recurring source of inefficiency. In practice, it often fails to return complete or relevant results unless queries are extremely specific. For instance, searching by a contact name or a keyword from an email body does not always surface expected messages, even when they clearly exist. The distinction between searching in the current folder versus the entire mailbox is not always obvious, which leads to missed results unless manually adjusted. This creates friction, especially for users managing large volumes of emails who rely on quick retrieval of past communications.

In addition, filters and advanced search options are not intuitive. Refining a search often requires multiple attempts, and the interface does not clearly guide the user toward more effective queries. This results in wasted time and, in some cases, the need to manually navigate folders as a fallback—defeating the purpose of having a search function in the first place. Review collected by and hosted on G2.com.

I really like how easy it is to keep everything in one place, like emails, calendar invites, and tasks. The calendar reminders are seriously a lifesaver, and I especially appreciate being able to schedule meetings directly from an email. It also syncs smoothly between my phone and laptop, so I don’t miss anything important. Review collected by and hosted on G2.com.

It can feel a little clunky sometimes. When it glitches or takes forever to load, it really slows me down. The interface could definitely be a bit more modern and user-friendly; some features just feel buried. Although it's nice to be able to integrate it with other software or signatures. Review collected by and hosted on G2.com.

Easy integration with (including copying & pasting, etc.) other Microsoft Office Suite programs like Excel and Word. Review collected by and hosted on G2.com.

I design and produce publications and have had the same Outlook email for 18+ years, so I have always been running into Outlook Desktop's 50GB storage limit (for record-keeping and time purposes, it's a lot easier & more accurate to keep emails & attachments rather than constantly moving/saving/deleting). We moved everything to the cloud that's over a year old, but that makes my extensive folder usage somewhat useless (click on a publication issue folder from 2 years ago, and there's nothing in it).

There should be a way to archive attachments, but still have the emails visible--sort of like compressing/zipping a file. Then the file & attachment sizes wouldn't count against the 50GB limit unless you needed to unzip the email in question. It would be a lot easier for the extensive record-keeping I like to do through Outlook. It's great to have a history of "who sent what to whom" for all publications I manage. Review collected by and hosted on G2.com.

It keeps everything in one place- email, calendar, and contacts are all connected, so it’s easy to manage work without switching between apps. The calendar is especially helpful for scheduling meetings right from your inbox. I also find the search feature reliable when I need to search old emails quickly. Review collected by and hosted on G2.com.

It can feel a bit heavy at times. When you have a large inbox, it takes longer to load and can slow things down. Updates also occasionally change layouts or features in ways that take time to adjust to. Review collected by and hosted on G2.com.

Of all the email tools I’ve used, Microsoft Outlook stands out for how efficiently it brings everything together in one place. I really appreciate its clean, easy-to-navigate interface, the smart email organization offered by features like Focused Inbox, and the smooth integration with the calendar, meetings, and other Microsoft 365 apps. Overall, it makes it much simpler to manage emails, schedule appointments, and collaborate with teams, which helps me stay productive and keep my work well organized. Review collected by and hosted on G2.com.

One thing I dislike about Microsoft Outlook is that it can sometimes feel slow and cluttered, especially when I’m managing large volumes of emails or switching between multiple folders and accounts. There are also times when the search function doesn’t return the most accurate results as quickly as I’d expect, which can hurt productivity when I’m trying to track down important conversations. On top of that, the sheer number of options and settings can make certain features feel a bit overwhelming for new users. Review collected by and hosted on G2.com.

MS outlook as we affectionately abbreviate and call it is our Go to tool for all of our professional communications we sent out on a day to day,

its integrated into almost all applications and I use it so regularly that its a part of me and has been for many years,

Apart from the convenience and the awesome looks for an email application Outlook is straightforward and intricate at the same time

you can literally get the application on all device platforms so its easy to implement and add to your arsenal of applications

We are the customer support and I am able to always help our customers and receive help for the application when needed

From my day to day support I provide for this outlook owa and all of its comfy features has a huge soft spot for all our customers and us in the support industry even the 32bit version still works for outlook classic wonderful app Review collected by and hosted on G2.com.

The new outlook doesn't have all of the features outlook classic has but its still convenient and easy to setup and use

I don't mind change but not all of the world especially customers like change Review collected by and hosted on G2.com.

What I like best about Microsoft Outlook is how it brings email, calendar, tasks, and meeting management together in one place. It helps me stay organized, prioritize work efficiently, and collaborate seamlessly with colleagues. Review collected by and hosted on G2.com.

One thing I dislike about Microsoft Outlook is that managing long email threads can become overwhelming, especially when multiple replies, forwards, and attachments are involved. Occasionally, search results and synchronization can also feel slower than expected when working with large mailboxes. Review collected by and hosted on G2.com.